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Finding the Fourth Proportional to 356,681.76, 492,139.96 and 241,976.04

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Solution

The fourth proportional to 356,681.76, 492,139.96 and 241,976.04 is: 333,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,681.76 : 492,139.96 = 241,976.04 : x
  2. Step 2: Convert to fraction form
    356,681.76/492,139.96 = 241,976.04/x
  3. Step 3: Cross multiply
    356,681.76x = 492,139.96 × 241,976.04
  4. Step 4: Simplify right side
    356,681.76x = 119,086,078,646.56
  5. Step 5: Solve for x
    x = 119,086,078,646.56/356,681.76
  6. Step 6: Final answer
    x = 333,872.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.